Home / 12,887.93-19,339.19-5,491.62

Finding the Fourth Proportional to 12,887.93, 19,339.19 and 5,491.62

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Solution

The fourth proportional to 12,887.93, 19,339.19 and 5,491.62 is: 8,240.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.93 : 19,339.19 = 5,491.62 : x
  2. Step 2: Convert to fraction form
    12,887.93/19,339.19 = 5,491.62/x
  3. Step 3: Cross multiply
    12,887.93x = 19,339.19 × 5,491.62
  4. Step 4: Simplify right side
    12,887.93x = 106,203,455.13
  5. Step 5: Solve for x
    x = 106,203,455.13/12,887.93
  6. Step 6: Final answer
    x = 8,240.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.